Cats recognise the voice of their owner, but never evolved to care.
22
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A giraffe's kick is so powerful that it can decapitate a lion.
216
When cats are happy, they may squeeze their eyes shut.
10